Complaint

Complaint is a central concept in contract law and is used when a buyer notifies a seller of defects or deficiencies in goods or services.

Explained – what does complaint mean?

A complaint is a buyer’s notice to the seller that there is a defect in goods or services. It may concern a quality defect, a shortfall in quantity or a functional defect. The complaint must be made within a reasonable time from the time of discovery, which is often regulated by legislation or the contract. In contract law, a complaint is a precondition for invoking certain remedies, for example a price reduction or termination of the contract. In these situations, a business contract lawyer can assist to ensure correct handling and to frame a proper notice of defect.

When does a complaint become relevant?

The question of a complaint arises when goods or services do not conform to what has been agreed. Examples include a purchase where the goods are damaged, a service not performed as agreed, or a delivery that is late. Both consumers and businesses need to act swiftly to avoid losing the right to rely on the defect. For consumers, a well-timed consumer complaint notice is crucial; in business-to-business settings, a prompt notice of defect is typically required. Complaint handling process disciplines are therefore central to the practical management of contract disputes.

Businessman filing an online complaint, approving an email form with checkmark, illustrating complaint handling and customer dispute resolution process.

Points to consider for a valid complaint

Several points are essential when making a complaint so that it is valid and has the intended effect.

The complaint must be made within a reasonable time from the time of discovery of the defect.
It should contain a clear description of the defect (for example non conformity, defect in goods or damaged goods).
It is important to state whether you demand a request for repair, a price reduction or termination.
A written notice of defect is recommended to avoid later ambiguity.
The buyer often has a duty to examine the goods and to raise deficiencies promptly, including any late delivery complaint for delivery delay.
Rules on complaints differ between the Swedish Consumer Sales Act (konsumentköplagen) and the Swedish Sale of Goods Act (köplagen); contractual terms may adjust or replace statutory rules in commercial contracts.

A precise, written complaint increases the chances of an efficient resolution and can help settle the purchase dispute more quickly.

Complaint

Why is a complaint important?

A complaint is decisive because it is the formal method for raising defects. Without a complaint in time, the buyer often loses the right to claim compensation or other remedies. This makes it central to the law on sales and contract law.

For businesses, complaint routines affect both customer relations and legal risk. A robust complaint handling process ensures rights can be enforced whilst preserving the relationship with the counterparty. Understanding the rules on complaint is therefore important for both buyers and sellers.

In the longer term, clear handling of complaints builds trust between the parties. It creates structure and predictability in business and can be decisive for long-term cooperation.

In commercial relationships, the Swedish Sale of Goods Act generally applies, but it is dispositive and can be modified or excluded by contract. This means the parties may set their own time limits for complaint and determine the remedies for defects. In commercial contracts, a notice of defect usually must be given very promptly, or the buyer risks losing its rights. A business contract lawyer can help draft and manage the notice and any late delivery complaint.

The Sale of Goods Act applies unless otherwise agreed.
A complaint must be made “within a reasonable time”; swift action is required.
The parties can agree bespoke rules for the complaint handling process.
Failure to complain in time can mean the buyer loses claims entirely.

A complaint must be made within a reasonable time from discovery of the defect. In consumer sales legislation, the rules are clearer, while in business-to-business matters the test is more contextual and contractual.

To be valid, a complaint should be clear and specify both the defect and the remedy sought (for example request for repair, price reduction or termination). A written notice of defect is common because it evidences what was sent.

A written complaint (including a consumer complaint notice) provides clear evidence and reduces ambiguity. It makes it easier to show timely action and to establish what was requested from the counterparty.

The buyer bears the burden of showing that the complaint was made within the correct time. Documentation—such as email or letters—can prove when the notice of defect was sent.

A complaint is a statutory right, while a guarantee is a voluntary commitment by the seller. A complaint gives the buyer legal remedies, for example: